真しん跡せき

noun

true autograph; genuine handwriting

Refers to a work written in the artist's or author's own hand, as opposed to a copy or reproduction. Used especially for calligraphy, paintings, and historical documents.

• この掛かけ軸じくは、あの有ゆう名めいな書しょ家かの真しん跡せきだそうです。

  This hanging scroll is said to be a true autograph of that famous calligrapher.

• 博はく物ぶつ館かんで、紫むらさき式しき部ぶの真しん跡せきと伝つたえられる巻まき物ものを見みた。

  At the museum, I saw a scroll believed to be Murasaki Shikibu's genuine handwriting.